As nouns the difference between diaspora and expat
is that diaspora is the dispersion of the Jews among the Gentiles after the Captivity while expat is an expatriate; a person who lives outside his or her own country.
As a proper noun Diaspora
is the dispersion of the Jews from the land of Israel.
diaspora
English
Proper noun
(
wikipedia Diaspora)
The dispersion of the Jews from the land of Israel.
The Jews so dispersed, taken collectively.
A similar dispersion.
Usage notes
* (similar dispersion) In this sense the term is frequently qualified, for example as “the African Diaspora”.
expat
English
Alternative forms
* ex-pat
Noun
(
en noun)
An expatriate; a person who lives outside his or her own country.